CVE-2026-30972
CVE-2026-30972 · Parse Server has a rate limit bypass via batch request endpoint
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior o 9.5.2-alpha.10 and 8.6.23, Parse Server's rate limiting middleware is applied at the Express middleware layer, but the batch request endpoint (/batch) processes sub-requests internally by routing them directly through the Promise router, bypassing Express middleware including rate limiting. An attacker can bundle multiple requests targeting a rate-limited endpoint into a single batch request to circumvent the configured rate limit. Any Parse Server deployment that relies on the built-in rate limiting feature is affected. This vulnerability is fixed in 9.5.2-alpha.10 and 8.6.23.
CVSS 6.9 · Medium · EPSS 0.6% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
parse-server
- Versions
- >= 9.0.0 < 9.5.2-alpha.10: Affected
- < 8.6.23: Affected
No fix published
parse-server npm
- Affected ranges
- SEMVER: ≥ 9.0.0-alpha.1, < 9.5.2-alpha.10
Update to 9.5.2-alpha.10
parse-server npm
- Affected ranges
- SEMVER: < 8.6.23
Update to 8.6.23